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Phase 2 N=32 Randomized Treatment

Study of Bacillus Calmette-Guerin (BCG) Combined With PANVAC Versus BCG Alone in Adults With High Grade Non-Muscle Invasive Bladder Cancer Who Failed At Least 1 Course of BCG

Bladder Cancer

Enrolled (actual)
32
Serious AEs
20.0%
Results posted
Jan 2020
Primary outcome: Primary: Percentage of Participants Without Recurrence (Recurrence-free Survival (RFS)) With Bacillus Calmette-Guerin (BCG) + PANVAC Compared With BCG Alone at 6 and 12 Months — 66; 60; 44.4; 42.9 percentage of participants

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
BCG intravesical live (TICE Bacillus Calmette-Guerin (BCG)) (Biological); PANVAC (Biological)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
National Cancer Institute (NCI)
Primary completion
Sep 2018

Outcome Measures

OutcomeResultp-value
PRIMARY
Percentage of Participants Without Recurrence (Recurrence-free Survival (RFS)) With Bacillus Calmette-Guerin (BCG) + PANVAC Compared With BCG Alone at 6 and 12 Months
66; 60; 44.4; 42.9
SECONDARY
Percentage of Participants Without Progression (Progression-Free Survival (PFS)) at 6 and 12 Months
79; 93; 78.5; 79.6
SECONDARY
Time to Recurrence
9.9; 11.7
SECONDARY
Number of Participants With Serious and Non-Serious Adverse Events
16; 13
SECONDARY
Overall Survival (OS)
41.4; 35.1

Summary

Background: - Many cancers produce two particular proteins. The immune system can target these to attack the cancer. The PANVAC vaccine puts genes for these proteins inside a virus vaccine so the body sees the proteins as foreign invaders and attacks them. Researchers will test PANVAC on people with high grade non-muscle invasive bladder cancer. They will give it to people who have not responded to the usual treatment, bacillus Calmette-Guerin (BCG) over several weeks. They want to see if PANVAC plus BCG is better than BCG alone. Objective: - To compare the effects of PANVAC plus BCG therapy, to BCG therapy alone. Eligibility: - Adults 18 and older with high grade non-muscle invasive bladder cancer who failed at least 1 course of BCG. Design: * Participants will be screened with blood and urine tests and abdominal scans. * Participants will be randomly assigned to get BCG only or BCG plus PANVAC. * They will have up to 10 visits over 15 weeks. Most of these are part of usual cancer care. * They will have blood and urine tests. * All participants will get BCG in 6 weekly injections. * One group will also get PANVAC in 5 injections over 15 weeks. * Between weeks 17 and 20, participants will undergo tests of the tumor area as part of their usual care. They will have cystoscopy, exam under anesthesia, and bladder biopsy. Results will be used to evaluate the different treatments. * Participants will have quarterly follow-up visits for up to 2 years.

Eligibility Criteria

  • INCLUSION CRITERIA:

3.1.1.1 Patients must have histologically confirmed localized high grade (G3) transitional cell carcinoma (urothelial carcinoma) of the bladder that is stage Ta, T1, and/or carcinoma in-situ (CIS) confirmed by the Laboratory of Pathology, National Cancer Institute (NCI) 45 days prior to study entry. This can be obtained at an outside hospital prior to entry into the study or at the NCI. However, all outside pathology specimens will require that the formalin-fixed paraffin embedded tissues be re-read by the Laboratory of Pathology, NCI. For patients enrolled at collaborating trial sites, diagnosis must be confirmed by the Department of Pathology at the institution where the patient is enrolled on the trial.

Pathology can also be reviewed by the Laboratory of Pathology at the NCI if the participating trial site prefers another pathologic evaluation.

3.1.1.2 Patients have failed at least one previous induction course of intravesical Bacillus Calmette-Guerin (BCG), defined as histologically confirmed persistent or relapsing tumor present on post-BCG endoscopic evaluation. All BCG failures will be considered for inclusion into the study, including BCG-refractory, -resistant, and relapsing, as defined in the Rationale and Background. For the purposes of the study, BCG-refractory and BCG-resistant subjects will be considered to have BCG-persistent disease.

3.1.1.3 Patients who are not currently candidates for radical cystectomy (e.g. patient refuses surgery, comorbidities preclude major surgery, etc.).

3.1.1.4 Age >18 years.

--Because no dosing or adverse event data are currently available on the use of BCG in combination with PANVAC in patients <18 years of age, children are excluded from this study.

3.1.1.5 Eastern Cooperative Oncology Group (ECOG) performance status <2.

3.1.1.6 Patients must have normal organ and marrow function as defined below:

  • absolute neutrophil count greater than or equal to1,500/mcL
  • platelets greater than or equal to 50,000/mcL
  • total bilirubin less than or equal to 1.5 X institutional upper limit of normal
  • Aspartate aminotransferase (AST)(serum glutamic oxaloacetic transaminase (SGOT)/alanine aminotransferase (ALT)(serum glutamic pyruvic transaminase (SGPT) less than or equal to 3 X institutional upper limit of normal
  • estimated glomerular filtration rate (GFR) (calculated using Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation) greater than or equal to 30 mL/min/1.73 sq.m.

3.1.1.7 Computerized Tomography (CT) urogram or Magnetic Resonance Imaging (MRI) urogram. If urogram protocol not available or contrast allergy/poor renal function preclude such imaging, then noncontrast CT or MRI of the abdomen/pelvis within 45 days of study entry will suffice.

3.1.1.8 Chest x-ray negative for metastatic disease.

3.1.1.9 Ability of patient to understand and the willingness to sign a written informed consent document.

EXCLUSION CRITERIA

3.1.2.1 Previous pelvic radiation for bladder or prostate cancer if performed <12 months prior to enrollment into the study.

3.1.2.2 Patients who are receiving any other concurrent investigational agents (patients are eligible to enroll 4 weeks after completion of prior agent).

3.1.2.3 Patients who have had chemotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier. There will be at least a 3 week delay from the time of a previous bladder biopsy/transurethral resection of bladder tumor (TURBT) to allow for adequate bladder healing prior to enrollment.

3.1.2.4 Patients with a history of encephalitis, multiple sclerosis, or seizures within the last year (from seizure disorder or brain metastasis) should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic

View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT02015104). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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